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    Ningbo Tonyhoo Electrical Technology Co., Ltd. is the first domestic enterprise to localize the copper shell of high-voltage intermediate joint, which was put on the market in 1997 and obtained the certification of domestic authorities to achieve mass production, and also recognized by foreign enterprises such as Japan and the USA to reach cooperation. The company has been focusing on the improvement and research and development of copper shell for high-voltage intermediate joint, occupying more than 60% of the market share. The products involve voltage levels from 35kV to 550kV, of which 550kV is currently the only enterprise certified by authoritative institutions in China.
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    Our customers throughout the national cable power industry, is the domestic focus on insulation intermediate joint copper shell production enterprises, in the enterprise qualification, product structure, production process, core technology and other aspects have great advantages. Follow us for more industry information.
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